police believe she was killed on friday night between 7 and 10 by someone who then stole her car a blue subaru. she was a former teacher well thought of in the community. her son thinks someone may have been watching her home. >> she felt very comfortable being here and working and doing the landscaping. i can only imagine somebody noticing that pattern and wanting to take advantage of that. >> the victim's children are using certainly media to try to -- social media to try to help police with their investigation. they have 140,000 followers on their facebook page. >>> a grisly discovery in east oakland a body found wrapped in cloth in a car near ritchie and olive street next to the arroyo viejo rec center. the body appears to have been there for some time. investigators aren't sure whether it's a homicide. >>> a professor at ucsf campus won the nobel prize for medicine, shinya yamanaka a native of japan. he and a british researcher won for their discovery that mature specialized cells of the body can be reprogrammed to become any kind of cell. the committee said the winners have shown that sp